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Haxaire C, Liebel F, Portocarrero Huang G, Chen S, Knapp E, Idkowiak-Baldys J, Glynn J. Effect of L-4-Thiazolylalanine (Protinol™) on skin barrier strength and skin protection. Int J Cosmet Sci 2023; 45:725-738. [PMID: 37402136 DOI: 10.1111/ics.12881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/19/2023] [Accepted: 06/24/2023] [Indexed: 07/05/2023]
Abstract
OBJECTIVES Skin barrier properties are critical for maintaining epidermal water content, protecting from environmental factors and providing the first line of defense against pathogens. In this study, we investigated the non-proteinogenic amino acid L-4-Thiazolylalanine (L4) as a potential active ingredient in skin protection and barrier strength. METHODS L4 on wound healing, anti-inflammatory and anti-oxidant properties were evaluated using monolayers and 3D skin equivalents. The transepithelial electrical resistance (TEER) value was used in vitro as a strong indicator of barrier strength and integrity. Clinical L4 efficacy was assessed for the evaluation of the skin barrier integrity and soothing benefits. RESULTS In vitro treatments of L4 show beneficial effects in wound closure mechanism, and we demonstrate that L4 anti-oxidant benefits with markedly increased HSP70 and decreased reactive oxygen species production induced by UVs exposure. Barrier strength and integrity were significantly improved by L4, confirmed clinically by an increase in 12R-lipoxygenase enzymatic activity in the stratum corneum. In addition, soothing benefits of L4 have been shown clinically with the decrease in redness after methyl nicotinate application on the inner arm and the significant reduction of the erythema and the skin desquamation on the scalp. CONCLUSION L4 delivered multiple skin benefits by strengthening the skin barrier, accelerating the skin repair process as well as soothing the skin and the scalp with anti-inflammaging effects. The observed efficacy validates L4 as a desirable skincare ingredient for topical treatment.
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Affiliation(s)
- C Haxaire
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - F Liebel
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - G Portocarrero Huang
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - S Chen
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - E Knapp
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - J Idkowiak-Baldys
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - J Glynn
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
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Kinger S, Dubey AR, Kumar P, Jagtap YA, Choudhary A, Kumar A, Prajapati VK, Dhiman R, Mishra A. Molecular Chaperones' Potential against Defective Proteostasis of Amyotrophic Lateral Sclerosis. Cells 2023; 12:cells12091302. [PMID: 37174703 PMCID: PMC10177248 DOI: 10.3390/cells12091302] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neuronal degenerative condition identified via a build-up of mutant aberrantly folded proteins. The native folding of polypeptides is mediated by molecular chaperones, preventing their pathogenic aggregation. The mutant protein expression in ALS is linked with the entrapment and depletion of chaperone capacity. The lack of a thorough understanding of chaperones' involvement in ALS pathogenesis presents a significant challenge in its treatment. Here, we review how the accumulation of the ALS-linked mutant FUS, TDP-43, SOD1, and C9orf72 proteins damage cellular homeostasis mechanisms leading to neuronal loss. Further, we discuss how the HSP70 and DNAJ family co-chaperones can act as potential targets for reducing misfolded protein accumulation in ALS. Moreover, small HSPB1 and HSPB8 chaperones can facilitate neuroprotection and prevent stress-associated misfolded protein apoptosis. Designing therapeutic strategies by pharmacologically enhancing cellular chaperone capacity to reduce mutant protein proteotoxic effects on ALS pathomechanisms can be a considerable advancement. Chaperones, apart from directly interacting with misfolded proteins for protein quality control, can also filter their toxicity by initiating strong stress-response pathways, modulating transcriptional expression profiles, and promoting anti-apoptotic functions. Overall, these properties of chaperones make them an attractive target for gaining fundamental insights into misfolded protein disorders and designing more effective therapies against ALS.
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Affiliation(s)
- Sumit Kinger
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Ankur Rakesh Dubey
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Prashant Kumar
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Yuvraj Anandrao Jagtap
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Akash Choudhary
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Amit Kumar
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore 453552, India
| | - Vijay Kumar Prajapati
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer 305817, India
| | - Rohan Dhiman
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
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Li S, Lei H, Li J, Sun A, Ahmed Z, Duan H, Chen L, Zhang B, Lei C, Yi K. Analysis of genetic diversity and selection signals in Chaling cattle of southern China using whole-genome scan. Anim Genet 2023; 54:284-294. [PMID: 36864643 DOI: 10.1111/age.13305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/12/2023] [Accepted: 01/30/2023] [Indexed: 03/04/2023]
Abstract
China has diversified resources of indigenous cattle, which are classified into Northern, Central, and Southern groups according to their geographical distribution. Chaling cattle belong to Southern group. This breed is famous for the production of good quality meat with elite meat grades. To analyze the genetic diversity of Chaling cattle, 20 samples were sequenced using whole-genome resequencing technology, along with 138 published whole-genome sequencing data of Indian indicine cattle, Chinese indicine cattle, East Asian taurine cattle, Eurasian taurine cattle, and European taurine cattle as control. It was found that Chaling cattle originated from Chinese indicine cattle. The genetic diversity of Chaling cattle is higher than that of Indian indicine cattle, East Asian taurine cattle, Eurasian taurine cattle, and European taurine cattle, but lower than that of Chinese indicine cattle and Xiangxi cattle. Annotating the selection signals obtained by composite likelihood ratio, θπ, FST , π-ratio, and XP-EHH methods, several genes associated with immunity, heat tolerance, reproduction, growth, and meat quality showed strong selection signals. In general, this study provides a theoretical basis for analyzing the genetic mechanism of Chaling cattle with excellent adaptability, rough feeding tolerance, good immune performance, and good meat quality. This work lays a foundation for genetic breeding of Chaling cattle in future.
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Affiliation(s)
- Shuang Li
- Hunan Institute of Animal and Veterinary Science, Changsha, Hunan, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Hong Lei
- Hunan Institute of Animal and Veterinary Science, Changsha, Hunan, China
| | - Jianbo Li
- Hunan Institute of Animal and Veterinary Science, Changsha, Hunan, China
| | - Ao Sun
- Hunan Institute of Animal and Veterinary Science, Changsha, Hunan, China
| | - Zulfiqar Ahmed
- Department of Livestock and Poultry Production, Faculty of Veterinary and Animal Science, University of Poonch Rawalakot, Azad Kashmir, Pakistan
| | - Hongfeng Duan
- Hunan Institute of Animal and Veterinary Science, Changsha, Hunan, China
| | - Lin Chen
- Chaling County Agricultural Development Corporation Ltd, Chaling, Hunan, China
| | - Baizhong Zhang
- Hunan Institute of Animal and Veterinary Science, Changsha, Hunan, China
| | - Chuzhao Lei
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Kangle Yi
- Hunan Institute of Animal and Veterinary Science, Changsha, Hunan, China
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4
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Safitri E, Purnobasuki H, Purnama MTE, Chhetri S. Role of apoptotic inhibitors, viability, and differentiation in low oxygen tension of mesenchymal stem cells cultured in a rat model of ovarian failure. F1000Res 2023; 12:24. [PMID: 38644927 PMCID: PMC11031646 DOI: 10.12688/f1000research.124919.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/11/2022] [Indexed: 04/23/2024] Open
Abstract
Background: Stem cell therapy shows applications potential for malnutrition-induced ovarian failure in rat models. However, it is ineffective because of the lack of viability and differentiation of transplanted stem cells, resulting in low adaptation and survival rates. We aimed to determine whether stem cells cultured under low oxygen (O 2) tension improves the adaptability and viability of stem cells, as well as ovarian failure. Methods: After four days of culturing mesenchymal stem cells (MSCs) in 21% oxygen (normoxia) as the T2 group and 1% oxygen (low O 2 or hypoxia) as the T1 group, 200 million bone marrow-derived MSCs per rat were transplanted into female rats with ovarian failure (15 rats per treatment group). A total of 15 fertile and 15 infertile rats were categorized as the C+ and C- groups, respectively. Results: The slight increase in cells expressing HSP70 (C+, T2, T1, and C- groups were 0.5 a±0.53, 1.7 a±0.82, 6.2 b±1.5, and 9.6 c±1.3, respectively), decrease in cells expressing caspase-3 as an apoptotic inhibitor (C+, T2, T1, and C- groups were 0.2 a±0.42, 0.6 a±0.52, 4.8 b±1.03, and 7.3 c±1.42, respectively), and increase in cells expressing VEGF-1 (C+, T2, T1, and C- groups were 10.8 c±1.55, 8.7 b±0.48, 0.4 a±0.52, and 0.2 a±0.42, respectively) and GDF-9 (C+, T2, T1, and C- groups were 5.8 c±1.47, 4.6 b±0.97, 0.5 a±0.53, and 0.3 a±0.48, respectively) were used as markers for viability and differentiation in ovarian tissue, indicating that MSCs cultured under low O 2 tension were more effective than those cultured under normoxic conditions as a treatment for female rats with ovarian failure. Furthermore, infertile female rats treated with MSCs cultivated under low O 2 tension had an enhanced ovarian tissue shape, as indicated by the increasing Graafian follicle count (C+, T2, T1, and C- groups were 8.9 c±0.74, 4.5 b±0.71, 0.5 a±0.53, and 0.4 a±0.52, respectively). Conclusions: MSCs cultured under low O 2 tension are an effective treatment for malnourished rats with ovarian failure.
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Affiliation(s)
- Erma Safitri
- Division of Veterinary Reproduction, Department of Veterinary Science, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, East Java, 60115, Indonesia
| | - Hery Purnobasuki
- Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya, East Java, 60115, Indonesia
| | - Muhammad Thohawi Elziyad Purnama
- Division of Veterinary Anatomy, Department of Veterinary Science, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, East Java, 60115, Indonesia
| | - Shekhar Chhetri
- Department of Animal Science, College of Natural Resources, Royal University of Bhutan, Lobesa, Punakha, 13001, Bhutan
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Hasan A, Rizvi SF, Parveen S, Mir SS. Molecular chaperones in DNA repair mechanisms: Role in genomic instability and proteostasis in cancer. Life Sci 2022; 306:120852. [DOI: 10.1016/j.lfs.2022.120852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/14/2022] [Accepted: 07/27/2022] [Indexed: 01/09/2023]
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Sun L, Qu K, Ma X, Hanif Q, Zhang J, Liu J, Chen N, Suolang Q, Lei C, Huang B. Whole-Genome Analyses Reveal Genomic Characteristics and Selection Signatures of Lincang Humped Cattle at the China-Myanmar Border. Front Genet 2022; 13:833503. [PMID: 35391795 PMCID: PMC8981028 DOI: 10.3389/fgene.2022.833503] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/01/2022] [Indexed: 11/13/2022] Open
Abstract
The location on the Yunnan border with Myanmar and its unique cultural landscape has shaped Lincang humped cattle over time. In the current study, we investigated the genetic characteristics of 22 Lincang humped cattle using whole-genome resequencing data. We found that Lincang humped cattle derived from both Indian indicine and Chinese indicine cattle depicted higher levels of genomic diversity. Based on genome-wide scans, candidate genomic regions were identified that were potentially involved in local thermal and humid environmental adaptions, including genes associated with the body size (TCF12, SENP2, KIF1C, and PFN1), immunity (LIPH, IRAK3, GZMM, and ELANE), and heat tolerance (MED16, DNAJC8, HSPA4, FILIP1L, HELB, BCL2L1, and TPX2). Missense mutations were detected in candidate genes IRAK3, HSPA4, and HELB. Interestingly, eight missense mutations observed in the HELB gene were specific to the indicine cattle pedigree. These mutations may reveal differences between indicine and taurine cattle adapted to variable climatic conditions. Our research provides new insights into the genetic characteristics of Lincang humped cattle representing Lincang and Pu'er areas as an important channel for the migration of Indian indicine from domestication centers toward southwestern China.
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Affiliation(s)
- Luyang Sun
- Yunnan Academy of Grassland and Animal Science, Kunming, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Kaixing Qu
- Academy of Science and Technology, Chuxiong Normal University, Chuxiong, China
| | - Xiaohui Ma
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Quratulain Hanif
- National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | - Jicai Zhang
- Yunnan Academy of Grassland and Animal Science, Kunming, China
| | - Jianyong Liu
- Yunnan Academy of Grassland and Animal Science, Kunming, China
| | - Ningbo Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Quji Suolang
- Institute of Animal Science, Tibet Academy of Agricultural and Animal Husbandry Science, Lhasa, China
| | - Chuzhao Lei
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Bizhi Huang
- Yunnan Academy of Grassland and Animal Science, Kunming, China
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An J, Liu Y, Han J, He C, Chen M, Zhu X, Hu W, Song W, Hu J, Guan Y. Transcriptional multiomics reveals the mechanism of seed deterioration in Nicotiana tabacum L. and Oryza sativa L. J Adv Res 2022; 42:163-176. [PMID: 36513411 PMCID: PMC9788960 DOI: 10.1016/j.jare.2022.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/02/2022] [Accepted: 03/14/2022] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION Mature seeds deteriorate gradually and die eventually during long-term storage. Controlled deterioration is often used to accelerate the seed deterioration rate to assess the seed vigor and physiological quality of seed lots. OBJECTIVES Although it is well known that the process of seed deterioration produced by controlled deterioration is distinct from that caused by long-term storage, the differences in transcriptional levels have not been reported. Clarifying the mechanism of seed deterioration is critical for identifying, conserving and utilizing germplasm resources. METHODS Tobacco (Nicotiana tabacum L.) seeds were studied thoroughly using transcriptome, small RNA, and degradome sequencing after long-term storage (LS) and controlled deterioration (CD). Co-expression trend analysis identified transcripts involved in tobacco seed deterioration, while phylogenetic analysis helped to uncover comparable targets in rice (Oryza sativa L.) for further verification and utilization. RESULTS In LS and CD, a total of 2,112 genes and 164 miRNAs were differentially expressed, including 20 interaction miRNA-mRNA pairs with contrasting expression. Transcriptional multiomics found that the main causes of LS were plant hormone signal transduction and protein processing in the endoplasmic reticulum, whereas the primary cause of CD was nucleotide excision repair dysfunction. The homeostatic balance of RNA degradation and the spliceosome occurred in both modes of seed deterioration. Additionally, co-expression trend analysis identified two coherent pairs, nta-miR160b-NtARF18 and nta-miR396c-NtMBD10, as being significant in LS and CD, respectively. For utilization, rice homologous targets OsARF18 and OsMBD707 were verified to play similar roles in LS and CD, respectively. CONCLUSION This study demonstrated the transcriptional mechanism of tobacco and key genes in seed deterioration. And the application of key genes in rice also verified the feasibility of the multiomics method, guiding the identification of candidate genes to precisely delay seed deterioration in other species of seed research.
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Affiliation(s)
- Jianyu An
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Yihan Liu
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China,Hainan Research Institute, Zhejiang University, Sanya, Hainan Province 572000, China
| | - Jiajun Han
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Can He
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Min Chen
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Xiaobo Zhu
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China,Hainan Research Institute, Zhejiang University, Sanya, Hainan Province 572000, China
| | - Weimin Hu
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China,Hainan Research Institute, Zhejiang University, Sanya, Hainan Province 572000, China
| | - Wenjian Song
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China,Hainan Research Institute, Zhejiang University, Sanya, Hainan Province 572000, China
| | - Jin Hu
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China,Hainan Research Institute, Zhejiang University, Sanya, Hainan Province 572000, China
| | - Yajing Guan
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China,Hainan Research Institute, Zhejiang University, Sanya, Hainan Province 572000, China,Corresponding author.
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8
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Tanguay RM, Hightower LE. Former CSSI President Tangchun Wu elected to the Chinese Academy of Engineering. Cell Stress Chaperones 2022; 27:1-2. [PMID: 34985715 PMCID: PMC8821756 DOI: 10.1007/s12192-021-01250-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2021] [Indexed: 11/03/2022] Open
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9
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Rahma N, Wurlina W, Madyawati SP, Utomo B, Hernawati T, Safitri E. Kaliandra honey improves testosterone levels, diameter and epithelial thickness of seminiferous tubule of white rat ( Rattus norvegicus) due to malnutrition through stimulation of HSP70. Open Vet J 2021; 11:401-406. [PMID: 34722203 PMCID: PMC8541709 DOI: 10.5455/ovj.2021.v11.i3.11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 08/10/2021] [Indexed: 11/03/2022] Open
Abstract
Background Malnutrition can cause an increase in oxidative stress as it triggers the expression of heat shock protein70 (HSP70), a chaperon molecule that is needed to repair damaged cells within optimal levels. Honey is a source of feed that can stimulate HSP70 expression, which can be given to the malnourished in the animal trial. Aim The purpose of this study was to prove that Kaliandra honey can improve testosterone levels, diameter, and epithelial thickness of the seminiferous tubule of rat testes (Rattus norvegicus) due to malnutrition through stimulation of HSP70, which is expressed immunohistochemically. Methods This study used 40 male rats, which were divided into four treatment groups: T0 (negative control): normal rats and not given honey; T1 (positive control): malnourished rats and not given honey; T2 (treatment 2): malnourished rats and given 30% Kaliandra honey (v/v) for 10 days; T3 (treatment 3), malnourished rats and given 50% Kaliandra honey (v/v) for 10 days. The condition of malnutrition is carried out by fasting the feed for five consecutive days resulting in damage to the male reproductive organs, especially the testes. Results The results showed that Kaliandra honey at a dose of 50% (v/v) had a significant effect in improving testosterone levels, diameter, and epithelial thickness of seminiferous tubule of malnourished male rats through stimulation of HSP70 expression. The HSP70 expression scores by IHC at T0, T1, T2, and T3 were 0.15a ± 0.5, 3.15c ± 0.4, 2.95c ± 0.35, and 1.75b ± 0.15, sequentially. enzyme-linked immunosorbent assay indirect testosterone levels at T0, T1, T2, and T3 (in μg/dl) were 36.39c ± 0.35, 6.12a ± 0.51, 7.45a ± 0.15, 25.27b ± 0.63, sequentially. The diameter and epithelial thickness of the seminiferous tubule of the testes (in μm) in the four treatments T0, T1, T2, and T3 were 362.40c ± 4.71, 248.46a ± 3.90, 255.22a ± 2.34, 318.37b ± 4.23 and 117.60d ± 11.30, 3.86a ± 1.57, 9.72b ± 3.96, 29.84c ± 4.02 sequentially. Conclusion The conclusion of the study showed that Kaliandra honey at a dose of 50% (v/v) had a significant effect in improving testosterone levels, diameter, and epithelial thickness of the seminiferous tubule of malnourished rats through stimulation of HSP70, although not significantly the same as negative control (T0).
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Affiliation(s)
| | - Wurlina Wurlina
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Sri Pantja Madyawati
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Budi Utomo
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Tatik Hernawati
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Erma Safitri
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
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Chaouhan HS, Jha RR, Patel DK, Kar Chowdhuri D. Cr(VI)-induced DNA damage is lessened by the modulation of hsp70 via increased GSH de novo synthesis in Drosophila melanogaster. J Biochem Mol Toxicol 2021; 35:e22819. [PMID: 34056787 DOI: 10.1002/jbt.22819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/16/2021] [Accepted: 05/18/2021] [Indexed: 01/16/2023]
Abstract
Hexavalent chromium [Cr(VI)] is a genotoxic chemical, and in the chemical-exposed organism, oxidative stress is one of the leading causative mechanisms of genotoxicity. Heat shock protein-70 (Hsp70) is reported to be modulated in environmental chemical exposed organisms. Inadequate information on the protective role of Hsp70 in chemical-induced DNA lesions prompted us to investigate this possibility in a well-studied genetically tractable in vivo model Drosophila melanogaster. In the midgut cells of Cr(VI)-exposed hsp70-knockout (KO), -knockdown (KD), and -overexpression Drosophila strains, no significant change in double-strand breaks generation was observed in comparison to similarly exposed w 1118 and the respective genetic control strain after 48 h. Therefore, the role of hsp70 was investigated on oxidative DNA damage induction in the exposed organisms after 24 h. Oxidized DNA lesions (particularly oxidized purine-based lesions), 8-oxo-dG level, and oxidative stress endpoints were found to be significantly elevated in hsp70-KO and -KD strains in comparison to similarly exposed w 1118 and respective genetic control strain. On the contrary, in ubiquitous hsp70-overexpression strain exposed to Cr(VI), these endpoints were significantly lowered concurrently with increased GSH level through elevated gclc, and gclm expression, Gclc level, and GCL activity. The study suggests that as a consequence of hsp70 overexpression, the augmented GSH level in cells vis-a-vis GSH de novo synthesis can counteract Cr(VI)-induced oxidized DNA lesions.
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Affiliation(s)
- Hitesh S Chaouhan
- Embryotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-IITR Campus, Lucknow, Uttar Pradesh, India
| | - Rakesh R Jha
- Academy of Scientific and Innovative Research (AcSIR), CSIR-IITR Campus, Lucknow, Uttar Pradesh, India.,Environmental Monitoring Laboratory, Regulatory Toxicology Group, Environmental Toxicology Group, CSIR Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India
| | - Devendra K Patel
- Academy of Scientific and Innovative Research (AcSIR), CSIR-IITR Campus, Lucknow, Uttar Pradesh, India.,Environmental Monitoring Laboratory, Regulatory Toxicology Group, Environmental Toxicology Group, CSIR Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India
| | - Debapratim Kar Chowdhuri
- Embryotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-IITR Campus, Lucknow, Uttar Pradesh, India
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11
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Zeni O, Romeo S, Sannino A, Palumbo R, Scarfì MR. Evidence of bystander effect induced by radiofrequency radiation in a human neuroblastoma cell line. ENVIRONMENTAL RESEARCH 2021; 196:110935. [PMID: 33647301 DOI: 10.1016/j.envres.2021.110935] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 02/15/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
In previous studies we demonstrated that radiofrequency (RF) electromagnetic fields (EMF) is able to reduce DNA damage induced by a subsequent treatment with genotoxic agents, resembling the adaptive response, a phenomenon well known in radiobiology. In this study we report on the capability of the culture medium from SH-SY5Y neuroblastoma cells exposed to 1950 MHz to elicit, in recipient non-exposed cells, a reduction of menadione-induced DNA damage (P < 0.05; comet assay), indicating the capability of non-ionizing radiation to elicit a bystander effect. A comparable reduction was also detected in cultures directly exposed to the same EMF conditions (P < 0.05), confirming the adaptive response. In the same exposure conditions, we also evidenced an increase of heat shock protein 70 (hsp70) in culture medium of cells exposed to RF with respect to sham exposed ones (P < 0.05; western blot analysis), while no differences were detected in the intracellular content of hsp70. On the whole, our results evidence a protective effect of RF against menadione-induced DNA damage in directly and non-directly exposed cells, and suggest hsp70 pathway to be investigated as one of the potential candidate underpinning the interaction between RF exposure and biological systems.
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Affiliation(s)
- Olga Zeni
- CNR-Institute for the Electromagnetic Sensing of the Environment, Via Diocleziano 328, 80124, Naples, Italy.
| | - Stefania Romeo
- CNR-Institute for the Electromagnetic Sensing of the Environment, Via Diocleziano 328, 80124, Naples, Italy.
| | - Anna Sannino
- CNR-Institute for the Electromagnetic Sensing of the Environment, Via Diocleziano 328, 80124, Naples, Italy.
| | - Rosanna Palumbo
- CNR-Institute for Biostructures and Bioimaging, Via Mezzocannone, 16, 80134, Naples, Italy.
| | - Maria Rosaria Scarfì
- CNR-Institute for the Electromagnetic Sensing of the Environment, Via Diocleziano 328, 80124, Naples, Italy.
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12
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Advances in DNA Repair-Emerging Players in the Arena of Eukaryotic DNA Repair. Int J Mol Sci 2020; 21:ijms21113934. [PMID: 32486270 PMCID: PMC7313471 DOI: 10.3390/ijms21113934] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 12/17/2022] Open
Abstract
Genomic DNA is constantly damaged by factors produced during natural metabolic processes as well as agents coming from the external environment. Considering such a wide array of damaging agents, eukaryotic cells have evolved a DNA damage response (DRR) that opposes the influence of deleterious factors. Despite the broad knowledge regarding DNA damage and repair, new areas of research are emerging. New players in the field of DDR are constantly being discovered. The aim of this study is to review current knowledge regarding the roles of sirtuins, heat shock proteins, long-noncoding RNAs and the circadian clock in DDR and distinguish new agents that may have a prominent role in DNA damage response and repair.
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13
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Rodríguez-Verdugo A, Lozano-Huntelman N, Cruz-Loya M, Savage V, Yeh P. Compounding Effects of Climate Warming and Antibiotic Resistance. iScience 2020; 23:101024. [PMID: 32299057 PMCID: PMC7160571 DOI: 10.1016/j.isci.2020.101024] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/11/2020] [Accepted: 03/25/2020] [Indexed: 12/18/2022] Open
Abstract
Bacteria have evolved diverse mechanisms to survive environments with antibiotics. Temperature is both a key factor that affects the survival of bacteria in the presence of antibiotics and an environmental trait that is drastically increasing due to climate change. Therefore, it is timely and important to understand links between temperature changes and selection of antibiotic resistance. This review examines these links by synthesizing results from laboratories, hospitals, and environmental studies. First, we describe the transient physiological responses to temperature that alter cellular behavior and lead to antibiotic tolerance and persistence. Second, we focus on the link between thermal stress and the evolution and maintenance of antibiotic resistance mutations. Finally, we explore how local and global changes in temperature are associated with increases in antibiotic resistance and its spread. We suggest that a multidisciplinary, multiscale approach is critical to fully understand how temperature changes are contributing to the antibiotic crisis.
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Affiliation(s)
| | - Natalie Lozano-Huntelman
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Mauricio Cruz-Loya
- Department of Computational Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Van Savage
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA 90095, USA; Department of Computational Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; Santa Fe Institute, Santa Fe, NM 87501, USA
| | - Pamela Yeh
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA 90095, USA; Santa Fe Institute, Santa Fe, NM 87501, USA.
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14
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Perera ON, Sobinoff AP, Teber ET, Harman A, Maritz MF, Yang SF, Pickett HA, Cesare AJ, Arthur JW, MacKenzie KL, Bryan TM. Telomerase promotes formation of a telomere protective complex in cancer cells. SCIENCE ADVANCES 2019; 5:eaav4409. [PMID: 31616780 PMCID: PMC6774720 DOI: 10.1126/sciadv.aav4409] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 09/09/2019] [Indexed: 05/04/2023]
Abstract
Telomerase is a ribonucleoprotein complex that catalyzes addition of telomeric DNA repeats to maintain telomeres in replicating cells. Here, we demonstrate that the telomerase protein hTERT performs an additional role at telomeres that is independent of telomerase catalytic activity yet essential for telomere integrity and cell proliferation. Short-term depletion of endogenous hTERT reduced the levels of heat shock protein 70 (Hsp70-1) and the telomere protective protein Apollo at telomeres, and induced telomere deprotection and cell cycle arrest, in the absence of telomere shortening. Short-term expression of hTERT promoted colocalization of Hsp70-1 with telomeres and Apollo and reduced numbers of deprotected telomeres, in a manner independent of telomerase catalytic activity. These data reveal a previously unidentified noncanonical function of hTERT that promotes formation of a telomere protective complex containing Hsp70-1 and Apollo and is essential for sustained proliferation of telomerase-positive cancer cells, likely contributing to the known cancer-promoting effects of both hTERT and Hsp70-1.
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Affiliation(s)
- Omesha N. Perera
- Cell Biology Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Alexander P. Sobinoff
- Telomere Length Regulation Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Erdahl T. Teber
- Bioinformatics Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Ashley Harman
- Cell Biology Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Michelle F. Maritz
- Children’s Cancer Institute, School of Women’s and Children’s Health, University of NSW, NSW 2052, Australia
| | - Sile F. Yang
- Telomere Length Regulation Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Hilda A. Pickett
- Telomere Length Regulation Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Anthony J. Cesare
- Genome Integrity Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Jonathan W. Arthur
- Bioinformatics Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Karen L. MacKenzie
- Children’s Cancer Institute, School of Women’s and Children’s Health, University of NSW, NSW 2052, Australia
| | - Tracy M. Bryan
- Cell Biology Unit, Children’s Medical Research Institute, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
- Corresponding author.
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15
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Zhang Q, Riddle RC, Yang Q, Rosen CR, Guttridge DC, Dirckx N, Faugere MC, Farber CR, Clemens TL. The RNA demethylase FTO is required for maintenance of bone mass and functions to protect osteoblasts from genotoxic damage. Proc Natl Acad Sci U S A 2019; 116:17980-17989. [PMID: 31434789 PMCID: PMC6731662 DOI: 10.1073/pnas.1905489116] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The fat mass and obesity-associated gene (FTO) encodes an m6A RNA demethylase that controls mRNA processing and has been linked to both obesity and bone mineral density in humans by genome-wide association studies. To examine the role of FTO in bone, we characterized the phenotype of mice lacking Fto globally (FtoKO ) or selectively in osteoblasts (FtoOcKO ). Both mouse models developed age-related reductions in bone volume in both the trabecular and cortical compartments. RNA profiling in osteoblasts following acute disruption of Fto revealed changes in transcripts of Hspa1a and other genes in the DNA repair pathway containing consensus m6A motifs required for demethylation by FtoFto KO osteoblasts were more susceptible to genotoxic agents (UV and H2O2) and exhibited increased rates of apoptosis. Importantly, forced expression of Hspa1a or inhibition of NF-κB signaling normalized the DNA damage and apoptotic rates in Fto KO osteoblasts. Furthermore, increased metabolic stress induced in mice by feeding a high-fat diet induced greater DNA damage in osteoblast of FtoOc KO mice compared to controls. These data suggest that FTO functions intrinsically in osteoblasts through Hspa1a-NF-κB signaling to enhance the stability of mRNA of proteins that function to protect cells from genotoxic damage.
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Affiliation(s)
- Qian Zhang
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD 21287
| | - Ryan C Riddle
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD 21287
- Baltimore Veterans Administration Medical Center, Baltimore, MD 21201
| | - Qian Yang
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD 21287
| | - Clifford R Rosen
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME 04074
| | - Denis C Guttridge
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC 29425
| | - Naomi Dirckx
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD 21287
| | | | - Charles R Farber
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA 22908
| | - Thomas L Clemens
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD 21287;
- Baltimore Veterans Administration Medical Center, Baltimore, MD 21201
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16
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Yin RH, Huang C, Yuan J, Li W, Yin RL, Li HS, Dong Q, Li XT, Bai WL. iTRAQ-based proteomics analysis reveals the deregulated proteins related to liver toxicity induced by melamine with or without cyanuric acid in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 174:618-629. [PMID: 30875555 DOI: 10.1016/j.ecoenv.2019.03.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
The administration of melamine alone or its combination with cyanuric acid was shown to have certain liver toxicity. However, the injury mechanism of melamine-related toxicity to liver remains poorly understood. In the present study, we investigated the deregulated proteins related to liver toxicity induced by melamine with or without cyanuric acid in mice using iTRAQ quantitative proteomics technique. A total of 166 proteins were significantly changed by the melamine treatment, of which, 36 proteins were up-regulated and 130 proteins were down-regulated. Whereas, 242 proteins were significantly changed by the combined treatment of melamine and cyanuric acid, of which 81 proteins were up-regulated and 161 proteins were down-regulated. The enriched analysis of GO terms and KEGG pathway on the altered proteins showed that both enriched main GO terms and KEGG pathways appear to be different between the two kinds of treatments: melamine and mixture of melamine and cyanuric acid. Based on western blotting technique, it was confirmed that the expression of three proteins: heat shock protein 70 (HSP70), protein disulphide isomerase 6 (PDIA6) and heat shock 70 kDa protein 4-like (HSPA4L) were agreement with the findings in iTRAQ-Based quantitative analysis. These identified proteins might participate in the regulation of a wide range of biological processes, such as immune and inflammatory function, unfolded proteins response in endoplasmic reticulum, DNA damage, and the apoptosis of liver cells. These results from this study provide a new way to gain insight into the mechanisms of melamine-related toxicity to liver in animals.
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Affiliation(s)
- Rong H Yin
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Chen Huang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Jing Yuan
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Wen Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Rong L Yin
- Research Academy of Animal Husbandry and Veterinary Medicine Sciences of Jilin Province, Changchun 130062, PR China
| | - Hua S Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Qiao Dong
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Xi T Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Wen L Bai
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China.
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17
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Ulrich G, Salvadè A, Boersema P, Calì T, Foglieni C, Sola M, Picotti P, Papin S, Paganetti P. Phosphorylation of nuclear Tau is modulated by distinct cellular pathways. Sci Rep 2018; 8:17702. [PMID: 30531974 PMCID: PMC6286375 DOI: 10.1038/s41598-018-36374-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 11/16/2018] [Indexed: 11/28/2022] Open
Abstract
Post-translational protein modification controls the function of Tau as a scaffold protein linking a variety of molecular partners. This is most studied in the context of microtubules, where Tau regulates their stability as well as the distribution of cellular components to defined compartments. However, Tau is also located in the cell nucleus; and is found to protect DNA. Quantitative assessment of Tau modification in the nucleus when compared to the cytosol may elucidate how subcellular distribution and function of Tau is regulated. We undertook an unbiased approach by combing bimolecular fluorescent complementation and mass spectrometry in order to show that Tau phosphorylation at specific residues is increased in the nucleus of proliferating pluripotent neuronal C17.2 and neuroblastoma SY5Y cells. These findings were validated with the use of nuclear targeted Tau and subcellular fractionation, in particular for the phosphorylation at T181, T212 and S404. We also report that the DNA damaging drug Etoposide increases the translocation of Tau to the nucleus whilst reducing its phosphorylation. We propose that overt phosphorylation of Tau, a hallmark of neurodegenerative disorders defined as tauopathies, may negatively regulate the function of nuclear Tau in protecting against DNA damage.
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Affiliation(s)
- Giorgio Ulrich
- Laboratory for Biomedical Neurosciences, Neurocenter of Southern Switzerland, Ente Cantonale Ospedaliero, Torricella-Taverne, Switzerland
| | - Agnese Salvadè
- Laboratory for Biomedical Neurosciences, Neurocenter of Southern Switzerland, Ente Cantonale Ospedaliero, Torricella-Taverne, Switzerland
| | - Paul Boersema
- Institute of Molecular Systems Biology, Department of Biology, ETHZ, Zurich, Switzerland
| | - Tito Calì
- Department of Biomedical Sciences and Padova Neuroscience Center, University of Padova, Padova, Italy
| | - Chiara Foglieni
- Laboratory for Biomedical Neurosciences, Neurocenter of Southern Switzerland, Ente Cantonale Ospedaliero, Torricella-Taverne, Switzerland
| | - Martina Sola
- Laboratory for Biomedical Neurosciences, Neurocenter of Southern Switzerland, Ente Cantonale Ospedaliero, Torricella-Taverne, Switzerland
| | - Paola Picotti
- Institute of Molecular Systems Biology, Department of Biology, ETHZ, Zurich, Switzerland
| | - Stéphanie Papin
- Laboratory for Biomedical Neurosciences, Neurocenter of Southern Switzerland, Ente Cantonale Ospedaliero, Torricella-Taverne, Switzerland
| | - Paolo Paganetti
- Laboratory for Biomedical Neurosciences, Neurocenter of Southern Switzerland, Ente Cantonale Ospedaliero, Torricella-Taverne, Switzerland.
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18
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Edea Z, Dadi H, Dessie T, Uzzaman MR, Rothschild MF, Kim ES, Sonstegard TS, Kim KS. Genome-wide scan reveals divergent selection among taurine and zebu cattle populations from different regions. Anim Genet 2018; 49:550-563. [PMID: 30246258 DOI: 10.1111/age.12724] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2018] [Indexed: 01/02/2023]
Abstract
In this study, to identify genomic signatures of divergent selection, we genotyped 10 cattle breeds/populations (n = 275), representing eight Ethiopian cattle populations (n = 229) and two zebu populations (n = 46) adapted to tropical and sub-tropical environments, using the high-density single-nucleotide polymorphisms (SNPs) derived mainly from Bos indicus breeds, and using five reference taurine breeds (n = 212). Population genetic differentiation (FST ) values across sliding windows were estimated between zebu and reference combined taurine breeds. The most differentiated regions (FST ≥ 0.53), representing the top 1% smoothed FST values, were considered to represent regions under diversifying selection. In total, 285 and 317 genes were identified in the comparisons of Ethiopian cattle with taurine and Asian zebu with taurine respectively. Some of these genes are involved in stress responses/thermo-tolerance and DNA damage repair (HSPA4, HSF1, CMPK1 and EIF2AK4), pigmentation (ERBB3 and MYO1A), reproduction/fertility (UBE2D3, ID3 and PSPC1), immune response (PIK3CD and AKIRIN2) and body stature and size (MBP2, LYN and NPM1). Additionally, the candidate genes were associated with functional terms (e.g. cellular response to stress, DNA repair, inflammatory response) important for physiological adaptation to environmental stresses. The results of our study may shed light on the influence of artificial and natural selection in shaping the genomic diversity of modern cattle breeds and also may serve as a basis for further genetic investigation of traits of tropical adaptation in cattle.
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Affiliation(s)
- Z Edea
- Department of Animal Science, Chungbuk National University, Cheongju, 28644, Korea
| | - H Dadi
- Department of Biotechnology, Addis Ababa Science and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
| | - T Dessie
- International Livestock Research Institute (ILRI), P.O. Box 5689, Addis Ababa, Ethiopia
| | - M R Uzzaman
- Department of Animal Science, Chungbuk National University, Cheongju, 28644, Korea.,Animal Genomics & Bioinformatics Division, National Institute of Animal Science, RDA, Wanju, 55365, S. Korea
| | - M F Rothschild
- Department of Animal Science, Iowa State University, Ames, IA, 50011, USA
| | - E-S Kim
- Recombinetics, Inc., Saint Paul, MN, 55104, USA
| | | | - K-S Kim
- Department of Animal Science, Chungbuk National University, Cheongju, 28644, Korea
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19
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Cruz-Loya M, Kang TM, Lozano NA, Watanabe R, Tekin E, Damoiseaux R, Savage VM, Yeh PJ. Stressor interaction networks suggest antibiotic resistance co-opted from stress responses to temperature. ISME JOURNAL 2018; 13:12-23. [PMID: 30171253 DOI: 10.1038/s41396-018-0241-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 06/12/2018] [Accepted: 07/04/2018] [Indexed: 11/09/2022]
Abstract
Environmental factors like temperature, pressure, and pH partly shaped the evolution of life. As life progressed, new stressors (e.g., poisons and antibiotics) arose as part of an arms race among organisms. Here we ask if cells co-opted existing mechanisms to respond to new stressors, or whether new responses evolved de novo. We use a network-clustering approach based purely on phenotypic growth measurements and interactions among the effects of stressors on population growth. We apply this method to two types of stressors-temperature and antibiotics-to discover the extent to which their cellular responses overlap in Escherichia coli. Our clustering reveals that responses to low and high temperatures are clearly separated, and each is grouped with responses to antibiotics that have similar effects to cold or heat, respectively. As further support, we use a library of transcriptional fluorescent reporters to confirm heat-shock and cold-shock genes are induced by antibiotics. We also show strains evolved at high temperatures are more sensitive to antibiotics that mimic the effects of cold. Taken together, our results strongly suggest that temperature stress responses have been co-opted to deal with antibiotic stress.
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Affiliation(s)
- Mauricio Cruz-Loya
- Department of Biomathematics, University of California, David Geffen School of Medicine, Los Angeles, CA, 90095, USA
| | - Tina Manzhu Kang
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA
| | - Natalie Ann Lozano
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA
| | - Rina Watanabe
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA
| | - Elif Tekin
- Department of Biomathematics, University of California, David Geffen School of Medicine, Los Angeles, CA, 90095, USA.,Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA
| | - Robert Damoiseaux
- Department of Medical and Molecular Pharmacology, University of California, David Geffen School of Medicine, Los Angeles, CA, 90095, USA
| | - Van M Savage
- Department of Biomathematics, University of California, David Geffen School of Medicine, Los Angeles, CA, 90095, USA.,Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA.,Santa Fe Institute, Santa Fe, NM, 87501, USA
| | - Pamela J Yeh
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA. .,Santa Fe Institute, Santa Fe, NM, 87501, USA.
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20
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Sottile ML, Nadin SB. Heat shock proteins and DNA repair mechanisms: an updated overview. Cell Stress Chaperones 2018; 23:303-315. [PMID: 28952019 PMCID: PMC5904076 DOI: 10.1007/s12192-017-0843-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 09/13/2017] [Indexed: 02/02/2023] Open
Abstract
Heat shock proteins (HSPs), also known as molecular chaperones, participate in important cellular processes, such as protein aggregation, disaggregation, folding, and unfolding. HSPs have cytoprotective functions that are commonly explained by their antiapoptotic role. Their involvement in anticancer drug resistance has been the focus of intense research efforts, and the relationship between HSP induction and DNA repair mechanisms has been in the spotlight during the past decades. Because DNA is permanently subject to damage, many DNA repair pathways are involved in the recognition and removal of a diverse array of DNA lesions. Hence, DNA repair mechanisms are key to maintain genome stability. In addition, the interactome network of HSPs with DNA repair proteins has become an exciting research field and so their use as emerging targets for cancer therapy. This article provides a historical overview of the participation of HSPs in DNA repair mechanisms as part of their molecular chaperone capabilities.
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Affiliation(s)
- Mayra L Sottile
- Tumor Biology Laboratory, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Adrián Ruiz Leal s/n Parque Gral. San Martín, 5500, Mendoza, Argentina
| | - Silvina B Nadin
- Tumor Biology Laboratory, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Adrián Ruiz Leal s/n Parque Gral. San Martín, 5500, Mendoza, Argentina.
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21
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Önay Uçar E, Şengelen A, Mertoğlu E, Pekmez M, Arda N. Suppression of HSP70 Expression by Quercetin and Its Therapeutic Potential Against Cancer. HSP70 IN HUMAN DISEASES AND DISORDERS 2018. [DOI: 10.1007/978-3-319-89551-2_19] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Xu X, Jiao L, Feng X, Ran J, Liang X, Zhao R. Heterogeneous expression of DnaK gene from Alicyclobacillus acidoterrestris improves the resistance of Escherichia coli against heat and acid stress. AMB Express 2017; 7:36. [PMID: 28194744 PMCID: PMC5307391 DOI: 10.1186/s13568-017-0337-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 02/02/2017] [Indexed: 11/10/2022] Open
Abstract
Alicyclobacillus acidoterrestris, an acidophilic and thermophilic bacteria, is an important microbial resource for stress resistance genes screening. In this study, DnaK gene from A. acidoterrestris was subcloned to construct the recombinant plasmid pET28a-DnaK. The successful construction of the plasmid was verified by double-enzyme digestion and sequencing analysis. The recombinant plasmid was transformed into Escherichia coli BL21 and isopropy-β-D-thiogalactoside (IPTG) was used to induce recombinant E. coli to express DnaK gene. A 70 kD fusion protein was identified by SDS-PAGE, which suggested that DnaK gene from A. acidoterrestris was successfully expressed. The recombinant and wild BL21 were treated with high temperatures of 54, 56 and 58 °C at pH values of 5.0-7.0 to compare the effects of heterogeneous expression of the DnaK gene from A. acidoterrestris on the stress resistance. The experimental results showed that survival rate of recombinant BL21-DnaK has been improved considerably under heat and acid stresses in contrast with the wild BL21, and D-values of recombinant BL21 were 14.7-72% higher than that of wild BL21, which demonstrated that heterogeneous expression of DnaK gene from A. acidoterrestris could significantly enhance the resistance of host bacteria E. coli against heat and acid stresses.
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Affiliation(s)
- Xixi Xu
- School of Food Science, Henan Institute of Science and Technology, Hualan Road, Xinxiang City, 453003 Henan Province China
| | - Lingxia Jiao
- School of Food Science, Henan Institute of Science and Technology, Hualan Road, Xinxiang City, 453003 Henan Province China
| | - Xin Feng
- School of Food Science, Henan Institute of Science and Technology, Hualan Road, Xinxiang City, 453003 Henan Province China
| | - Junjian Ran
- School of Food Science, Henan Institute of Science and Technology, Hualan Road, Xinxiang City, 453003 Henan Province China
| | - Xinhong Liang
- School of Food Science, Henan Institute of Science and Technology, Hualan Road, Xinxiang City, 453003 Henan Province China
| | - Ruixiang Zhao
- School of Food Science, Henan Institute of Science and Technology, Hualan Road, Xinxiang City, 453003 Henan Province China
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DEMETER plant DNA demethylase induces antiviral response by interferon signalling in animal cells. Sci Rep 2017; 7:9160. [PMID: 28831075 PMCID: PMC5567224 DOI: 10.1038/s41598-017-08827-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/17/2017] [Indexed: 12/20/2022] Open
Abstract
DNA methylation is a prominent epigenetic modification in plants and animals regulated by similar mechanisms but the process of DNA demethylation is profoundly different. Unlike vertebrates that require a series of enzymatic conversions of 5-methylcytosine (5mC) into other bases for DNA demethylation, plants utilize the DEMETER (DME) family of 5mC DNA glycosylases to catalyze a direct removal of 5mC from DNA. Here we introduced Arabidopsis DME into human HEK-293T cells to allow direct 5mC excision, and observed that direct DNA demethylation activity was successfully implemented by DME expression. In addition, DME induced diverse cellular responses such as cell proliferation inhibition, cell cycle dysregulation and S phase arrest. Microarray and methylome analyses revealed that DME upregulated a number of genes including cell cycle components, heat shock proteins, and notably, various interferon-stimulated genes. Moreover, DME-mediated DNA demethylation activated endogenous repeat elements, which are likely to form dsRNAs as viral mimics and eventually trigger interferon cascades to establish the antiviral state. This work demonstrates that plant DNA demethylase catalyzes DNA demethylation with a bypass of initial base conversion steps, and the interferon signaling plays a pivotal role to alleviate genotoxic stresses associated with DME-induced DNA demethylation in mammalian cells.
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Kim JS, Son Y, Jung MG, Jeong YJ, Kim SH, Lee SJ, Lee YJ, Lee HJ. Geranylgeranylacetone alleviates radiation-induced lung injury by inhibiting epithelial-to-mesenchymal transition signaling. Mol Med Rep 2016; 13:4666-70. [PMID: 27082939 DOI: 10.3892/mmr.2016.5121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 03/09/2016] [Indexed: 11/06/2022] Open
Abstract
Radiation-induced lung injury (RILI) involves pneumonitis and fibrosis, and results in pulmonary dysfunction. Moreover, RILI can be a fatal complication of thoracic radiotherapy. The present study investigated the protective effect of geranylgeranlyacetone (GGA), an inducer of heat shock protein (HSP)70, on RILI using a C57BL/6 mouse model of RILI developing 6 months subsequent to exposure to 12.5 Gy thoracic radiation. GGA was administered 5 times orally prior and subsequent to radiation exposure, and the results were assessed by histological analysis and western blotting. The results show that late RILI was alleviated by GGA treatment, possibly through the suppression of epithelial‑to‑mesenchymal transition (EMT) marker expression. Based on histological examination, orally administered GGA during the acute phase of radiation injury not only significantly inhibited pro‑surfactant protein C (pro‑SPC) and vimentin expression, but also preserved E‑cadherin expression 6 months after irradiation‑induced injury of the lungs. GGA induced HSP70 and inhibited EMT marker expression in L132 human lung epithelial cells following IR. These data suggest that the prevention of EMT signaling is a key cytoprotective effect in the context of RILI. Thus, HSP70‑inducing drugs, such as GGA, could be beneficial for protection against RILI.
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Affiliation(s)
- Joong-Sun Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619‑953, Republic of Korea
| | - Yeonghoon Son
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul 139‑706, Republic of Korea
| | - Myung-Gu Jung
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul 139‑706, Republic of Korea
| | - Ye Ji Jeong
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul 139‑706, Republic of Korea
| | - Sung-Ho Kim
- Department of Veterinary Anatomy, College of Veterinary Medicine, Chonnam National University, Gwangju 500‑757, Republic of Korea
| | - Su-Jae Lee
- Laboratory of Molecular Biochemistry, Department of Life Science, Research Institute for Natural Sciences, Hanyang University, Seoul 133‑791, Republic of Korea
| | - Yoon-Jin Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul 139‑706, Republic of Korea
| | - Hae-June Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul 139‑706, Republic of Korea
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Bukar Maina M, Al-Hilaly YK, Serpell LC. Nuclear Tau and Its Potential Role in Alzheimer's Disease. Biomolecules 2016; 6:9. [PMID: 26751496 PMCID: PMC4808803 DOI: 10.3390/biom6010009] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 12/16/2015] [Accepted: 12/23/2015] [Indexed: 12/14/2022] Open
Abstract
Tau protein, found in both neuronal and non-neuronal cells, forms aggregates in neurons that constitutes one of the hallmarks of Alzheimer’s disease (AD). For nearly four decades, research efforts have focused more on tau’s role in physiology and pathology in the context of the microtubules, even though, for over three decades, tau has been localised in the nucleus and the nucleolus. Its nuclear and nucleolar localisation had stimulated many questions regarding its role in these compartments. Data from cell culture, mouse brain, and the human brain suggests that nuclear tau could be essential for genome defense against cellular distress. However, its nature of translocation to the nucleus, its nuclear conformation and interaction with the DNA and other nuclear proteins highly suggest it could play multiple roles in the nucleus. To find efficient tau-based therapies, there is a need to understand more about the functional relevance of the varied cellular distribution of tau, identify whether specific tau transcripts or isoforms could predict tau’s localisation and function and how they are altered in diseases like AD. Here, we explore the cellular distribution of tau, its nuclear localisation and function and its possible involvement in neurodegeneration.
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Affiliation(s)
- Mahmoud Bukar Maina
- School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QG, East Sussex, UK.
- Department of Human Anatomy, College of Medical Science, Gombe State University, Gombe 760, Nigeria.
| | - Youssra K Al-Hilaly
- School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QG, East Sussex, UK.
- Chemistry Department, College of Sciences, Al-Mustansiriyah University, Baghdad, Iraq.
| | - Louise C Serpell
- School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QG, East Sussex, UK.
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Martins E, Santos RS, Bettencourt R. Vibrio diabolicus challenge in Bathymodiolus azoricus populations from Menez Gwen and Lucky Strike hydrothermal vent sites. FISH & SHELLFISH IMMUNOLOGY 2015; 47:962-977. [PMID: 26529571 DOI: 10.1016/j.fsi.2015.10.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 10/23/2015] [Accepted: 10/27/2015] [Indexed: 06/05/2023]
Abstract
Menez Gwen (MG) and Lucky Strike (LS) deep-sea hydrothermal vents are located at 850 m and 1730 m depths respectively and support chemosynthesis-based ecosystems partially differing in heavy metal concentration, temperature range, and faunistic composition. The successfully adapted deep-sea vent mussel Bathymodiolus azoricus is found at both vent locations. In such inhospitable environments survival strategies rely on the establishment of bacteria-vent animal symbiosis In spite of the toxic nature of deep-sea vents, the problem of microbial threat and the need for immunity exist in B. azoricus. This study aims at investigating the immune system of B. azoricus from MG and LS populations by comparing immune gene expressions profiles using the deep-sea vent-related Vibrio diabolicus. Expression of nineteen immune genes was analyzed from gill, digestive gland and mantle tissues upon 3 h, 12 h and 24 h V. diabolicus challenges. Based on quantitative-Polymerase Chain Reaction (qPCR) significant gene expression differences were found among MG and LS populations and challenge times MG mussels revealed that gill and digestive gland gene expression levels were remarkably higher than those from LS mussels. Expression of Carcinolectin, Serpin-2, SRCR, IRGs, RTK, TLR2, NF-κB, HSP70 and Ferritin genes was greater in MG than LS mussels. In contrast, mantle tissue from LS mussels revealed the highest peak of expression at 24 h for most genes analyzed. The activation of immune signaling pathways demonstrated that gene expression profiles are distinct between the two mussel populations. These differences may possibly ensue from intrinsic immune transcriptional activities upon which host responses are modulated in presence of V. diabolicus. mRNA transcript variations were assessed during 24 h acclimatization taking into account the partial depuration to which mussels were subjected to. Additionally, gene expression differences may reflect still accountable effects from the presence of vent remaining microfluidic environments within the tissues analyzed.
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Affiliation(s)
- Eva Martins
- IMAR Institute of Marine Research Center, Portugal; MARE- Marine and Environmental Sciences Centre, Rua Prof. Dr. Frederico Machado, 9901-862 Horta, Portugal.
| | - Ricardo Serrão Santos
- IMAR Institute of Marine Research Center, Portugal; MARE- Marine and Environmental Sciences Centre, Rua Prof. Dr. Frederico Machado, 9901-862 Horta, Portugal; Department of Oceanography and Fisheries, University of the Azores, Portugal
| | - Raul Bettencourt
- IMAR Institute of Marine Research Center, Portugal; MARE- Marine and Environmental Sciences Centre, Rua Prof. Dr. Frederico Machado, 9901-862 Horta, Portugal.
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Bethea CL, Reddy AP. Ovarian steroids regulate gene expression related to DNA repair and neurodegenerative diseases in serotonin neurons of macaques. Mol Psychiatry 2015; 20:1565-78. [PMID: 25600110 PMCID: PMC4508249 DOI: 10.1038/mp.2014.178] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 10/28/2014] [Accepted: 11/13/2014] [Indexed: 12/26/2022]
Abstract
Depression often accompanies the perimenopausal transition and it often precedes overt symptomology in common neurodegenerative diseases (NDDs, such as Alzheimer's, Parkinson's, Huntington, amyotrophic lateral sclerosis). Serotonin dysfunction is frequently found in the different etiologies of depression. We have shown that ovariectomized (Ovx) monkeys treated with estradiol (E) for 28 days supplemented with placebo or progesterone (P) on days 14-28 had reduced DNA fragmentation in serotonin neurons of the dorsal raphe nucleus, and long-term Ovx monkeys had fewer serotonin neurons than intact controls. We questioned the effect of E alone or E+P (estradiol supplemented with progesterone) on gene expression related to DNA repair, protein folding (chaperones), the ubiquitin-proteosome, axon transport and NDD-specific genes in serotonin neurons. Ovx macaques were treated with placebo, E or E+P (n=3 per group) for 1 month. Serotonin neurons were laser captured and subjected to microarray analysis and quantitative real-time PCR (qRT-PCR). Increases were confirmed with qRT-PCR in five genes that code for proteins involved in repair of strand breaks and nucleotide excision. NBN1, PCNA (proliferating nuclear antigen), GADD45A (DNA damage-inducible), RAD23A (DNA damage recognition) and GTF2H5 (gene transcription factor 2H5) significantly increased with E or E+P treatment (all analysis of variance (ANOVA), P<0.01). Chaperone genes HSP70 (heat-shock protein 70), HSP60 and HSP27 significantly increased with E or E+P treatment (all ANOVA, P<0.05). HSP90 showed a similar trend. Ubiquinase coding genes UBEA5, UBE2D3 and UBE3A (Parkin) increased with E or E+P (all ANOVA, P<0.003). Transport-related genes coding kinesin, dynein and dynactin increased with E or E+P treatment (all ANOVA, P<0.03). SCNA (α-synuclein) and ADAM10 (α-secretase) increased (both ANOVA, P<0.02) but PSEN1 (presenilin1) decreased (ANOVA, P<0.02) with treatment. APP decreased 10-fold with E or E+P administration. Newman-Keuls post hoc comparisons indicated variation in the response to E alone versus E+P across the different genes. In summary, E or E+P increased gene expression for DNA repair mechanisms in serotonin neurons, thereby rendering them less vulnerable to stress-induced DNA fragmentation. In addition, E or E+P regulated four genes encoding proteins that are often misfolded or malfunctioning in neuronal populations subserving overt NDD symptomology. The expression and regulation of these genes in serotonergic neurons invites speculation that they may mediate an underlying disease process in NDDs, which in turn may be ameliorated or delayed with timely hormone therapy in women.
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Affiliation(s)
- Cynthia L. Bethea
- Division of Reproductive Sciencesm, Oregon National Primate Research Center Beaverton, OR 97006, Division of Neuroscience Oregon National Primate Research Center Beaverton, OR 97006, Department of Obstetrics and Gynecology Oregon Health and Science University Portland, OR 97201
| | - Arubala P. Reddy
- Division of Reproductive Sciencesm, Oregon National Primate Research Center Beaverton, OR 97006
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Jeong YJ, Jung MG, Son Y, Jang JH, Lee YJ, Kim SH, Ko YG, Lee YS, Lee HJ. Coniferyl aldehyde attenuates radiation enteropathy by inhibiting cell death and promoting endothelial cell function. PLoS One 2015; 10:e0128552. [PMID: 26029925 PMCID: PMC4452689 DOI: 10.1371/journal.pone.0128552] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 04/28/2015] [Indexed: 11/19/2022] Open
Abstract
Radiation enteropathy is a common complication in cancer patients. The aim of this study was to investigate whether radiation-induced intestinal injury could be alleviated by coniferyl aldehyde (CA), an HSF1-inducing agent that increases cellular HSP70 expression. We systemically administered CA to mice with radiation enteropathy following abdominal irradiation (IR) to demonstrate the protective effects of CA against radiation-induced gastrointestinal injury. CA clearly alleviated acute radiation-induced intestinal damage, as reflected by the histopathological data and it also attenuated sub-acute enteritis. CA prevented intestinal crypt cell death and protected the microvasculature in the lamina propria during the acute and sub-acute phases of damage. CA induced HSF1 and HSP70 expression in both intestinal epithelial cells and endothelial cells in vitro. Additionally, CA protected against not only the apoptotic cell death of both endothelial and epithelial cells but also the loss of endothelial cell function following IR, indicating that CA has beneficial effects on the intestine. Our results provide novel insight into the effects of CA and suggest its role as a therapeutic candidate for radiation-induced enteropathy due to its ability to promote rapid re-proliferation of the intestinal epithelium by the synergic effects of the inhibition of cell death and the promotion of endothelial cell function.
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Affiliation(s)
- Ye-Ji Jeong
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
- Department of Life Sciences, Korea University, Seoul, Korea
| | - Myung Gu Jung
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Yeonghoon Son
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Jun-Ho Jang
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Yoon-Jin Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Sung-Ho Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, Korea
| | - Young-Gyo Ko
- Department of Life Sciences, Korea University, Seoul, Korea
| | - Yun-Sil Lee
- College of Pharmacy & Division of Life & Pharmaceutical Sciences, Ewha Womans University, Seoul, Korea
- * E-mail: (HJL); (YSL)
| | - Hae-June Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
- * E-mail: (HJL); (YSL)
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Adams C, Cazzanelli G, Rasul S, Hitchinson B, Hu Y, Coombes RC, Raguz S, Yagüe E. Apoptosis inhibitor TRIAP1 is a novel effector of drug resistance. Oncol Rep 2015; 34:415-22. [PMID: 25998939 DOI: 10.3892/or.2015.3988] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 03/23/2015] [Indexed: 11/06/2022] Open
Abstract
TP53-regulated inhibitor of apoptosis 1 (TRIAP1) is a novel apoptosis inhibitor that binds HSP70 in the cytoplasm and blocks the formation of the apoptosome and caspase-9 activation. TRIAP1 has been shown to be upregulated in many types of cancers; however, its role remains elusive. We determined the TRIAP1 mRNA levels in a panel of human tissues and found its expression to be ubiquitous. Normal breast, as well as non-tumorigenic breast cells, exhibited lower TRIAP1 mRNA levels than breast cancer cells or their drug-resistant derivatives. TRIAP1 is a small, evolutionarily conserved protein that is 76 amino acids long. We found that yeast cells, in which the TRIAP1 homologue was knocked out, had increased sensitivity to doxorubicin. Equally, RNA interference in breast cancer drug-resistant cells demonstrated that downregulation of TRIAP1 impaired cell growth in the presence of doxorubicin. As expected, caspase-9 activation was diminished after overexpression of TRIAP1 in drug-resistant cells. Importantly, stable transfections of a TRIAP1 expression plasmid in CAL51 cells led to a marked increase in the number of doxorubicin-resistant clones, that was abolished when cells expressed hairpins targeting TRIAP1. In addition, we showed that TRIAP1 expression was also triggered by estrogen deprivation in MCF-7 cells. Although both polyclonal and monoclonal antibodies generated for the present study failed to robustly detect TRIAP1, we demonstrated that TRIAP1 represents a novel marker for drug resistance in breast cancer cells and it may be used in the stratification of breast cancer patients once a suitable antibody has been developed. Equally, these studies open potential drug development strategies for blocking TRIAP1 activity and avoiding drug resistance.
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Affiliation(s)
- Caroline Adams
- Cancer Research Centre, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
| | - Giulia Cazzanelli
- Cancer Research Centre, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
| | - Sabeena Rasul
- Cancer Research Centre, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
| | - Ben Hitchinson
- Cancer Research Centre, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
| | - Yunhui Hu
- Cancer Research Centre, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
| | - R Charles Coombes
- Cancer Research Centre, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
| | - Selina Raguz
- Institute of Clinical Sciences, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
| | - Ernesto Yagüe
- Cancer Research Centre, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, London W12 0NN, UK
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Peng L, Liu M, Chang X, Yang Z, Yi S, Yan J, Peng Y. Effects of pre-moxibustion at Zusanli (ST36) on heat shock protein 70 expression in rats with gastric mucosal lesions after neurotomy. Neural Regen Res 2014. [PMID: 25538762 DOI: 10.3969/j.issn.1673-5374] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Studies have shown that pre-moxibustion protects the gastric mucosa by up-regulating the expression of heat shock protein 70. However, the signaling pathway underlying this effect remains unclear. Rats were intragastrically administered absolute alcohol, causing obvious lesion of the gastric mucosa. Following pre-moxibustion at Zusanli (ST36) for 8 days, the ulcer index decreased to different degrees. The results of an enzyme linked immunosorbent assay and western blotting showed significant upregulation of heat shock protein 70 expression in the gastric mucosa and serum. None out of transection of the spinal cord, damage to the nucleus of the solitary tract, neurotomy of the vagal nerve and neurotomy of the common peroneal nerve affected the decrease in ulcer index or the increase in heat shock protein 70 expression in serum after pre-moxibustion at Zusanli, and heat shock protein 70 expression was obviously decreased in the gastric mucosa. These findings suggest that pre-moxibustion at Zusanli can protect the gastric mucosa against lesioning, and that the mechanism underlying this effect involves its induction of heat shock protein 70 expression. Neural pathways participate in the regulatory effects of moxibustion on heat shock protein 70 expression in the gastric mucosa.
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Affiliation(s)
- Liang Peng
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Mi Liu
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Xiaorong Chang
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Zhou Yang
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Shouxiang Yi
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Jie Yan
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Yan Peng
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
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HSP90 regulates DNA repair via the interaction between XRCC1 and DNA polymerase β. Nat Commun 2014; 5:5513. [PMID: 25423885 PMCID: PMC4246423 DOI: 10.1038/ncomms6513] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 10/07/2014] [Indexed: 02/06/2023] Open
Abstract
Cellular DNA repair processes are crucial to maintain genome stability and integrity. In DNA base excision repair, a tight heterodimer complex formed by DNA polymerase β (Polβ) and XRCC1 is thought to facilitate repair by recruiting Polβ to DNA damage sites. Here we show that disruption of the complex does not impact DNA damage response or DNA repair. Instead, the heterodimer formation is required to prevent ubiquitylation and degradation of Polβ. In contrast, the stability of the XRCC1 monomer is protected from CHIP-mediated ubiquitylation by interaction with the binding partner HSP90. In response to cellular proliferation and DNA damage, proteasome and HSP90-mediated regulation of Polβ and XRCC1 alters the DNA repair complex architecture. We propose that protein stability, mediated by DNA repair protein complex formation, functions as a regulatory mechanism for DNA repair pathway choice in the context of cell cycle progression and genome surveillance.
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Peng L, Liu M, Chang X, Yang Z, Yi S, Yan J, Peng Y. Role of the nucleus tractus solitarii in the protection of pre-moxibustion on gastric mucosal lesions. Neural Regen Res 2014; 9:198-204. [PMID: 25206801 PMCID: PMC4146166 DOI: 10.4103/1673-5374.125350] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2013] [Indexed: 12/12/2022] Open
Abstract
Previous studies have shown that somatic sensation by acupuncture and visceral nociceptive stimulation can converge in the nucleus tractus solitarii where neurons integrate signals impacting on the function of organs. To explore the role of the nucleus tractus solitarii in the protective mechanism of pre-moxibustion on gastric mucosa, nucleus tractus solitarii were damaged in rats and pre-moxibustion treatment at the Zusanli (ST36) point followed. The gastric mucosa was then damaged by the anhydrous ethanol lavage method. Morphological observations, enzyme linked immunosorbent assays, and western immunoblot analyses showed that gastric mucosa surface lesion and the infiltration of inflammatory cells were significantly ameliorated after pre-moxibustion treatment. Furthermore, the gastric mucosal damage index and somatostatin level were reduced, and epidermal growth factor content in the gastric mucosa and heat-shock protein-70 expression were increased. These results were reversed by damage to the nucleus tractus solitarii. These findings suggest that moxibustion pretreatment at the Zusanli point is protective against acute gastric mucosa injury, and nucleus tractus solitarii damage inhibits these responses. Therefore, the nucleus tractus solitarii may be an important area for regulating the signal transduction of the protective effect of pre-moxibustion on gastric mucosa.
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Affiliation(s)
- Liang Peng
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Mi Liu
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Xiaorong Chang
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Zhou Yang
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Shouxiang Yi
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Jie Yan
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Yan Peng
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
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Leung AM, Redlak MJ, Miller TA. Role of heat shock proteins in oxygen radical-induced gastric apoptosis. J Surg Res 2014; 193:135-44. [PMID: 25145901 DOI: 10.1016/j.jss.2014.07.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 06/27/2014] [Accepted: 07/08/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND The generation of reactive oxygen species (ROS) and their resultant oxidative damage is a common pathway for gastric mucosal injury. Developing strategies to protect the gastric epithelium against oxygen free radical damage is of profound pathophysiological interest. We have previously shown caspase-mediated apoptosis as a major cause of ROS-induced cell death in gastric mucosa. Because heat shock proteins (Hsps) confer protection against many cytotoxic agents, this study was undertaken to determine whether modulation of Hsps was protective against oxidative damage. MATERIALS AND METHODS AGS cells (human gastric mucosal cell line) received either no pretreatment, heat shock pretreatment (1 h at 42 ± 1°C), or pretreatment with an Hsp modulating drug (geldanamycin or quercetin). Cells were then exposed to hydrogen peroxide (H2O2), a representative ROS (1 mM, a physiologically relevant concentration), for 24 h. Caspase-3 activation and Poly ADP Ribose Polymerase (PARP) inactivation, as well as DNA-histone complex formation were used as measures of apoptosis. Inducible Hsps (Hsp70 and Hsp90) were detected using Western blot analysis. RESULTS Results showed heat shock pretreatment induced increased expression of Hsp70 without change in Hsp90. In response to H2O2 exposure alone, there was significant increase in DNA-histone complex formation as well as caspase-3 activation and PARP cleavage in gastric epithelium. Heat shock pretreatment resulted in statistically significant prevention in these measures of apoptosis. Geldanamycin increased Hsp70, but elicited cleavage of Hsp90 and subsequently resulted in an increase in H2O2-induced apoptosis. Quercetin decreased Hsp70 and resulted again in increased H2O2-induced apoptosis. CONCLUSIONS These findings indicate that heat shock pretreatment protects gastric mucosal cells against H2O2-induced apoptosis and that Hsp70 and Hsp90 may play key roles in this process. These results further suggest that perturbations in Hsp metabolism may induce mucosal injury in response to oxygen free radicals.
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Affiliation(s)
- Anna M Leung
- Department of Surgery, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, Virginia
| | - Maria J Redlak
- Department of Surgery, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, Virginia
| | - Thomas A Miller
- Department of Surgery, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, Virginia.
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Nadin SB, Sottile ML, Montt-Guevara MM, Gauna GV, Daguerre P, Leuzzi M, Gago FE, Ibarra J, Cuello-Carrión FD, Ciocca DR, Vargas-Roig LM. Prognostic implication of HSPA (HSP70) in breast cancer patients treated with neoadjuvant anthracycline-based chemotherapy. Cell Stress Chaperones 2014; 19:493-505. [PMID: 24307543 PMCID: PMC4041939 DOI: 10.1007/s12192-013-0475-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/24/2013] [Accepted: 10/29/2013] [Indexed: 10/25/2022] Open
Abstract
Neoadjuvant chemotherapy is used in patients with locally advanced breast cancer to reduce tumor size before surgery. Unfortunately, resistance to chemotherapy may arise from a variety of mechanisms. Heat shock proteins (HSPs), which are highly expressed in mammary tumor cells, have been implicated in anticancer drug resistance. In spite of the widely described value of HSPs as molecular markers in cancer, their implications in breast tumors treated with anthracycline-based neoadjuvant chemotherapy has been poorly explored. In this study, we have evaluated, by immunohistochemistry, the expression of HSP27 (HSPB1) and HSP70 (HSPA) in serial biopsies from locally advanced breast cancer patients (n = 60) treated with doxorubicin (DOX)- or epirubicin (EPI)-based monochemotherapy. Serial biopsies were taken at days 1, 3, 7, and 21, and compared with prechemotherapy and surgical biopsies. After surgery, the patients received additional chemotherapy with cyclophosphamide, methotrexate, and 5-fluorouracil. High nuclear HSPB1 and HSPA expressions were found in invasive cells after DOX/EPI administration (P < 0.001), but the drug did not affect the cytoplasmic expression of the HSPs. Infiltrating lymphocytes showed high nuclear HSPA (P < 0.01) levels at postchemotherapy. No correlations were found between HSPs expression and the clinical and pathological response to neoadjuvant therapy. However, in postchemotherapy biopsies, high nuclear (>31 % of the cells) and cytoplasmic HSPA expressions (>11 % of the tumor cells) were associated with better DFS (P = 0.0348 and P = 0.0118, respectively). We conclude that HSPA expression may be a useful prognostic marker in breast cancer patients treated with neoadjuvant DOX/EPI chemotherapy indicating the need to change the administered drugs after surgery for overcoming drug resistance.
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Affiliation(s)
- Silvina B Nadin
- Tumor Biology Laboratory, Institute of Medicine and Experimental Biology of Cuyo, National Scientific and Technical Research Council, Mendoza, Argentina,
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Wen W, Liu W, Shao Y, Chen L. VER-155008, a small molecule inhibitor of HSP70 with potent anti-cancer activity on lung cancer cell lines. Exp Biol Med (Maywood) 2014; 239:638-45. [PMID: 24676905 DOI: 10.1177/1535370214527899] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Lung cancer is the most common malignancy and exhibits significant morbidity and mortality worldwide. Among all lung cancer subtypes, non-small-cell lung cancer (NSCLC) accounts for the majority of all lung cancer cases. Although there have been intensive investigations on the underlying mechanism of NSCLC development and progression, the exact molecular basis is not well understood. Further insights on important molecular regulators of lung cancer are needed for development of novel therapeutics. The heat shock protein (HSP) family is a group of molecular chaperones that assist in protein folding, modification, and transportation. Different HSPs are essential for tumor cell survival by binding diverse client proteins and regulating homeostasis. In the current study, we sought to characterize HSP70 and HSP90 as potent regulators of NSCLC growth. Our results indicate that differential expression of HSP70 is associated with the malignant phenotype of NSCLC cell lines and plays an important regulatory role in NSCLC cell proliferation. Moreover, a specific inhibitor of HSP70, VER-155008 significantly inhibits NSCLC proliferation and cell cycle progression. We showed that this effect is largely abolished by HSP70 overexpression, indicating that the inhibitory effect of VER-155008 on cell growth is specifically through HSP70 inhibition. In addition, 17-AAD, an inhibitor of HSP90, exerts a potent synergistic effect on NSCLC proliferation with VER-155008. We also observed that inhibition of HSP70 by VER-155008 can sensitize A549 cells to ionizing radiation. These data provide proof-of-principle that VER-155008 can be a good candidate for NSCLC treatment and HSP machinery is a good target for developing NSCLC therapeutics.
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Affiliation(s)
- Wei Wen
- Department of Thoracic Surgery, People's Hospital of Jiangsu Province, Nanjing Medical University, Nanjing 210029, China
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Duan Y, Huang S, Yang J, Niu P, Gong Z, Liu X, Xin L, Currie RW, Wu T. HspA1A facilitates DNA repair in human bronchial epithelial cells exposed to Benzo[a]pyrene and interacts with casein kinase 2. Cell Stress Chaperones 2014; 19:271-9. [PMID: 23979991 PMCID: PMC3933616 DOI: 10.1007/s12192-013-0454-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 08/08/2013] [Accepted: 08/09/2013] [Indexed: 01/30/2023] Open
Abstract
Benzo[a]pyrene (BaP) is a ubiquitously distributed environmental pollutant that induces deoxyribonucleic acid (DNA) damage. The inducible heat shock protein (HspA1A) can function as a molecular chaperone; however, its role in DNA repair remains largely unknown. In the present study, human bronchial epithelial cells (16HBE) stably transfected with plasmids carrying HspA1A gene or shRNAs against HspA1A were treated with BaP. DNA damage levels of the cells were evaluated by comet assay. Results suggest that HspA1A could protect cells against DNA damage and facilitate the decrease of DNA damage levels during the first 2 h of DNA repair. DNA repair capacity (DRC) of Benzo(a)pyrene diol epoxide (BPDE)-DNA adducts was evaluated by host cell reactivation assay in the stable 16HBE cells transfected with luciferase reporter vector PCMVluc pretreated with BPDE. Compared with control cells, cells overexpressing HspA1A showed higher DRC (p < 0.01 at 10 μM BPDE and p < 0.05 at 20 μM BPDE, respectively), while knockdown of HspA1A inhibited DNA repair (p < 0.05 at 10 μM BPDE). Moreover, casein kinase 2 (CK2) was shown to interact with HspA1A by mass spectrometry and co-immunoprecipitation assays. The two proteins were co-localized in the cell nucleus and perinuclear region during DNA repair, and were identified by confocal laser scanning microscope. In addition, cells overexpressing HspA1A showed an increased CK2 activity after BaP treatment compared with control cells (p < 0.01). Our results suggest that HspA1A facilitates DNA repair after BaP treatment. HspA1A also interacts with CK2 and enhances the kinase activities of CK2 during DNA repair.
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Affiliation(s)
- Yanying Duan
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
- />Department of Occupational and Environmental Health, School of Public Health, Xiangya Medical College, Central South University, Changsha, 410078 Hunan China
| | - Suli Huang
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Jin Yang
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Piye Niu
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Zhiyong Gong
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Xiaoyong Liu
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Lili Xin
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - R. William Currie
- />Department of Anatomy and Neurobiology, Dalhousie University, 5850 College Street, Halifax, Nova Scotia B3H 4R2 Canada
| | - Tangchun Wu
- />Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
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Wang X, Jiang Q, Wang W, Su L, Han Y, Wang C. Molecular mechanism of polypeptides from Chlamys farreri (PCF)’s anti-apoptotic effect in UVA-exposed HaCaT cells involves HSF1/HSP70, JNK, XO, iNOS and NO/ROS. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 130:47-56. [DOI: 10.1016/j.jphotobiol.2013.11.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 11/04/2013] [Accepted: 11/05/2013] [Indexed: 12/01/2022]
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Villarini M, Ambrosini MV, Moretti M, Dominici L, Taha E, Piobbico D, Gambelunghe C, Mariucci G. Brain hsp70 expression and DNA damage in mice exposed to extremely low frequency magnetic fields: A dose-response study. Int J Radiat Biol 2013; 89:562-70. [DOI: 10.3109/09553002.2013.782449] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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40
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Heat shock protein HSP70B as a marker for genotype resistance to environmental stress in Chlorella species from contrasting habitats. Gene 2013; 516:184-9. [DOI: 10.1016/j.gene.2012.11.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 07/19/2012] [Accepted: 11/29/2012] [Indexed: 11/20/2022]
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Peng L, Liu M, Chang X, Yang Z, Yi S, Yan J, Peng Y. Effects of pre-moxibustion at Zusanli (ST36) on heat shock protein 70 expression in rats with gastric mucosal lesions after neurotomy. Neural Regen Res 2012; 7:2370-6. [PMID: 25538762 PMCID: PMC4268743 DOI: 10.3969/j.issn.1673-5374.2012.30.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 06/24/2012] [Indexed: 12/18/2022] Open
Abstract
Studies have shown that pre-moxibustion protects the gastric mucosa by up-regulating the expression of heat shock protein 70. However, the signaling pathway underlying this effect remains unclear. Rats were intragastrically administered absolute alcohol, causing obvious lesion of the gastric mucosa. Following pre-moxibustion at Zusanli (ST36) for 8 days, the ulcer index decreased to different degrees. The results of an enzyme linked immunosorbent assay and western blotting showed significant upregulation of heat shock protein 70 expression in the gastric mucosa and serum. None out of transection of the spinal cord, damage to the nucleus of the solitary tract, neurotomy of the vagal nerve and neurotomy of the common peroneal nerve affected the decrease in ulcer index or the increase in heat shock protein 70 expression in serum after pre-moxibustion at Zusanli, and heat shock protein 70 expression was obviously decreased in the gastric mucosa. These findings suggest that pre-moxibustion at Zusanli can protect the gastric mucosa against lesioning, and that the mechanism underlying this effect involves its induction of heat shock protein 70 expression. Neural pathways participate in the regulatory effects of moxibustion on heat shock protein 70 expression in the gastric mucosa.
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Affiliation(s)
- Liang Peng
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Mi Liu
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Xiaorong Chang
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Zhou Yang
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Shouxiang Yi
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Jie Yan
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
| | - Yan Peng
- College of Acupuncture and Tuina, Hunan University of Chinese Medicine, Changsha 410007, Hunan Province, China
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42
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The potential value of the neutral comet assay and the expression of genes associated with DNA damage in assessing the radiosensitivity of tumor cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2012; 748:52-9. [DOI: 10.1016/j.mrgentox.2012.06.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 06/27/2012] [Accepted: 06/30/2012] [Indexed: 01/30/2023]
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Adams NL, Campanale JP, Foltz KR. Proteomic responses of sea urchin embryos to stressful ultraviolet radiation. Integr Comp Biol 2012; 52:665-80. [PMID: 22576820 DOI: 10.1093/icb/ics058] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Solar ultraviolet radiation (UVR, 290-400 nm) penetrates into seawater and can harm shallow-dwelling and planktonic marine organisms. Studies dating back to the 1930s revealed that echinoids, especially sea urchin embryos, are powerful models for deciphering the effects of UVR on embryonic development and how embryos defend themselves against UV-induced damage. In addition to providing a large number of synchronously developing embryos amenable to cellular, biochemical, molecular, and single-cell analyses, the purple sea urchin, Strongylocentrotus purpuratus, also offers an annotated genome. Together, these aspects allow for the in-depth study of molecular and biochemical signatures of UVR stress. Here, we review the effects of UVR on embryonic development, focusing on the early-cleavage stages, and begin to integrate data regarding single-protein responses with comprehensive proteomic assessments. Proteomic studies reveal changes in levels of post-translational modifications to proteins that respond to UVR, and identify proteins that can then be interrogated as putative targets or components of stress-response pathways. These responsive proteins are distributed among systems upon which targeted studies can now begin to be mapped. Post-transcriptional and translational controls may provide early embryos with a rapid, fine-tuned response to stress during early stages, especially during pre-blastula stages that rely primarily on maternally derived defenses rather than on responses through zygotic gene transcription.
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Affiliation(s)
- N L Adams
- California Polytechnic State University, San Luis Obispo, CA, USA.
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44
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Nadin SB, Cuello-Carrión FD, Sottile ML, Ciocca DR, Vargas-Roig LM. Effects of hyperthermia on Hsp27 (HSPB1), Hsp72 (HSPA1A) and DNA repair proteins hMLH1 and hMSH2 in human colorectal cancer hMLH1-deficient and hMLH1-proficient cell lines. Int J Hyperthermia 2012; 28:191-201. [DOI: 10.3109/02656736.2011.638962] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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45
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Effects of single-wall carbon nanotubes in human cells of the oral cavity: Geno-cytotoxic risk. Toxicol In Vitro 2011; 25:1811-9. [DOI: 10.1016/j.tiv.2011.09.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 09/14/2011] [Accepted: 09/19/2011] [Indexed: 12/13/2022]
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46
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Nair S, Hande MP, Lim LHK. Annexin-1 protects MCF7 breast cancer cells against heat-induced growth arrest and DNA damage. Cancer Lett 2010; 294:111-7. [PMID: 20163912 DOI: 10.1016/j.canlet.2010.01.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 01/21/2010] [Accepted: 01/21/2010] [Indexed: 12/28/2022]
Abstract
Stress proteins protect cells against the effects of heat stress, such as cell death and DNA damage. We wished to determine if Annexin-1 (ANXA1) could mediate heat-induced growth arrest and DNA damage in MCF7 breast cancer cells. Heat induced a significant growth arrest at 4h-24h. Growth arrest and heat-induced DNA damage were significantly inhibited in MCF7 cells over-expressing ANXA1. These effects were associated with enhanced ERK activation and reduction in JNK phosphorylation. This study demonstrates that ANXA1, which we recently reported as a possible tumor suppressor gene, can protect cells from heat-induced growth arrest and DNA damage.
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Affiliation(s)
- Sunitha Nair
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 28 Medical Drive, Singapore
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Ermokhina OV, Belkina GG, Oleskina YP, Fattakhov SG, Yurina NP. The impact of melaphene on the expression of chloroplastic chaperone protein HSP70B and photosynthetic pigments in cells of Chlamydomonas reinhardtii. APPL BIOCHEM MICRO+ 2009. [DOI: 10.1134/s0003683809050160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Yang J, Liu X, Niu P, Zou Y, Duan Y. Correlations and co-localizations of Hsp70 with XPA, XPG in human bronchial epithelia cells exposed to benzo[a]pyrene. Toxicology 2009; 265:10-4. [PMID: 19748547 DOI: 10.1016/j.tox.2009.09.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Revised: 09/02/2009] [Accepted: 09/04/2009] [Indexed: 02/08/2023]
Abstract
Benzo[a]pyrene (BaP) is a ubiquitously distributed environmental pollutant known to cause DNA damage, which may be repaired through nucleotide excision repair (NER). The significantly negative correlation between Hsp70 levels and the level of DNA damage in workers exposed to coke oven emission had been found. However, little is known about how Hsp70 modulate the DNA repair process. In a series of experiments using the human bronchial epithelia cells (16HBE) exposed to different concentrations of BaP for 24h, we measured expression of NER subunit xeroderma pigmentosum (XP) group A, C, F, G (XPA, XPC, XPF, XPG), excision repair cross-complementing 1 (ERCC1) and Hsp70, and analyzed their possible correlations. Co-localizations of Hsp70 with NER subunit were detected by confocal microscope. We found that in vitro exposure to BaP reduced cell viability in a dose-dependent manner ranging from 2 to 64 microM. Our results showed that levels of XPA, XPG and Hsp70 significantly increased at cells exposed to 1 or 2muM BaP. In addition, curve estimation showed there was a significant correlation between relative ratios of Hsp70 and XPA, XPG in cells exposed to different concentrations of BaP. Moreover, confocal microscopy demonstrated increased co-localization of Hsp70 with XPA, XPG in nuclei of cells exposed to BaP. These results suggested that Hsp70 might play a role in nucleotide excision repair. However, the mechanisms underlying this observation need further investigation.
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Affiliation(s)
- Jin Yang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Xinjiannan Road 86, 030001 Taiyuan, China
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Barrier M, Dix DJ, Mirkes PE. Inducible 70 kDa heat shock proteins protect embryos from teratogen-induced exencephaly: Analysis using Hspa1a/a1b knockout mice. ACTA ACUST UNITED AC 2009; 85:732-40. [DOI: 10.1002/bdra.20610] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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50
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Kotoglou P, Kalaitzakis A, Vezyraki P, Tzavaras T, Michalis LK, Dantzer F, Jung JU, Angelidis C. Hsp70 translocates to the nuclei and nucleoli, binds to XRCC1 and PARP-1, and protects HeLa cells from single-strand DNA breaks. Cell Stress Chaperones 2009; 14:391-406. [PMID: 19089598 PMCID: PMC2728274 DOI: 10.1007/s12192-008-0093-6] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2008] [Revised: 10/28/2008] [Accepted: 11/24/2008] [Indexed: 02/01/2023] Open
Abstract
For many years, there has been uncertainty concerning the reason for Hsp70 translocation to the nucleus and nucleolus. Herein, we propose that Hsp70 translocates to the nucleus and nucleoli in order to participate in pathways related to the protection of the nucleoplasmic DNA or ribosomal DNA from single-strand breaks. The absence of Hsp70 in HeLa cells, via Hsp70 gene silencing (knockdown), indicated the essential role of Hsp70 in DNA integrity. Therefore, HeLa Hsp70 depleted cells were very sensitive in heat treatment and their DNA breaks were multiple compared to that of control HeLa cells. The molecular mechanism with which Hsp70 performs its role at the level of nucleus and nucleolus during stress was examined. Hsp70 co-localizes with PARP1 in the nucleus/nucleoli as was observed in confocal studies and binds to the BCRT domain of PARP1 as was revealed with protein-protein interaction assays. It was also found that Hsp70 binds simultaneously to XRCC1 and PARP-1, indicating that Hsp70 function takes place at the level of DNA repair and possibly at the base excision repair system. Making a hypothetical model, we have suggested that Hsp70 is the molecule that binds and interrelates with PARP1 creating the repair proteins simultaneously, such as XRCC1, at the single-strand DNA breaks. Our data partially clarify a previously unrecognized cellular response to heat stress. Finally, we can speculate that Hsp70 plays a role in the quality and integrity of DNA.
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Affiliation(s)
- Polychronis Kotoglou
- Laboratory of General Biology, Medical School, University of Ioannina, Ioannina, 45110 Greece
| | - Alexandros Kalaitzakis
- Laboratory of General Biology, Medical School, University of Ioannina, Ioannina, 45110 Greece
| | - Patra Vezyraki
- Laboratory of Experimental Physiology, Medical School, University of Ioannina, Ioannina, 45110 Greece
| | - Theodore Tzavaras
- Laboratory of General Biology, Medical School, University of Ioannina, Ioannina, 45110 Greece
| | - Lampros K. Michalis
- Michaileidion Cardiac Center, Medical School, University of Ioannina, Ioannina, 45110 Greece
- Department of Cardiology, Medical School, University of Ioannina, Ioannina, 45110 Greece
| | - Francoise Dantzer
- Integrite du Genome, Ecole Superieure de Biotechnologie de Strasbourg, Unite Mixte de Recherche 7175, 67412 Illkirch, France
| | - Jae U. Jung
- Department of Microbiology and Molecular Genetics, Tumor Virology Division, New England Primate Research Center, Harvard Medical School, 1 Pine Hill Drive, Southborough, MA 01772-9102 USA
| | - Charalampos Angelidis
- Laboratory of General Biology, Medical School, University of Ioannina, Ioannina, 45110 Greece
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